"I remain the luckiest guy I know," he said in a statement, after revealing he has been diagnosed with multiple myeloma.

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Veteran NBC News journalist Tom Brokaw has cancer, he said in a personal note released Tuesday.

Tom Brokaw has been diagnosed with cancer and is making progress in battling it, he told NBC News in a personal note released Tuesday.

The veteran NBC News journalist was diagnosed with multiple myeloma, a type of cancer that affects bone marrow blood cells, at the Mayo Clinic in August of last year, NBC News reported. His doctors are hopeful about the outcome of his treatment and encouraged by the progress he is making.

His full statement released Tuesday is as follows:

"With the exceptional support of my family, medical team and friends, I am very optimistic about the future and look forward to continuing my life, my work and adventures still to come.

I remain the luckiest guy I know.

I am very grateful for the interest in my condition but I also hope everyone understands I wish to keep this a private matter."

Brokaw, who has worked with NBC News since 1966, has continued to work on NBC projects during his treatment, among them a two-hour documentary on the assassination of President John F. Kennedy and coverage of the Sochi Olympics for NBC Sports Network.